---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-017720"
form_type: "8-K"
ticker: "PAYX"
cik: "0000723531"
company_name: "PAYCHEX INC"
filed_at: "2022-08-24T23:59:59+00:00"
generated_at: "2026-06-23T21:50:17.732623+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Paychex CEO Martin Mucci to retire Oct 14; COO John Gibson named successor

## Summary
- Mucci retires as CEO effective Oct 14, 2022; remains Chairman of the Board.
- John B. Gibson appointed President and CEO; previously President and COO since Dec 2021.
- Gibson's base salary set at $825k; receives equity awards totaling $2.5M (options, RSUs).
- Under Mucci, Paychex revenue doubled to $4.6B, market cap rose to ~$50B.

## SEC filing metadata
- accession: 0000950170-22-017720
- form_type: 8-K
- ticker: PAYX
- cik: 0000723531
- company_name: PAYCHEX INC
- filed_at: 2022-08-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/723531/000095017022017720/0000950170-22-017720-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/723531/000095017022017720/payx-20220823.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-017720
- JSON: https://secwatch.observer/filing/0000950170-22-017720.json
- Plain text: https://secwatch.observer/filing/0000950170-22-017720.txt

## Key facts
- Executive change
  John B. Gibson was appointed as President and Chief Executive Officer at PAYCHEX INC.
  - Action: appointed
  - Role: President and Chief Executive Officer
  source text: On August 23, 2022, the Board appointed John B. Gibson, age 56, to serve as the Company’s President and Chief Executive Officer effective as of October 14, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/723531/000095017022017720/0000950170-22-017720-index.htm
- Executive change
  Martin Mucci retired as Chief Executive Officer at PAYCHEX INC.
  - Action: retired
  - Role: Chief Executive Officer
  source text: On August 23, 2022, Martin Mucci, the Chairman and Chief Executive Officer of Paychex, Inc. (the “Company”), notified the Board of Directors of the Company (the “Board”) of his intention to retire as the Company’s Chief Executive Officer effective as of October 14, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/723531/000095017022017720/0000950170-22-017720-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.